Package org.exolab.castor.xml.descriptors

Source Code of org.exolab.castor.xml.descriptors.SQLTimeClassDescriptor

/**
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
*    statements and notices.  Redistributions must also contain a
*    copy of this document.
*
* 2. Redistributions in binary form must reproduce the
*    above copyright notice, this list of conditions and the
*    following disclaimer in the documentation and/or other
*    materials provided with the distribution.
*
* 3. The name "Exolab" must not be used to endorse or promote
*    products derived from this Software without prior written
*    permission of Intalio, Inc.  For written permission,
*    please contact info@exolab.org.
*
* 4. Products derived from this Software may not be called "Exolab"
*    nor may "Exolab" appear in their names without prior written
*    permission of Intalio, Inc. Exolab is a registered
*    trademark of Intalio, Inc.
*
* 5. Due credit should be given to the Exolab Project
*    (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
* INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2000-2004 (C) Intalio, Inc. All Rights Reserved.
*
* $Id: SQLTimeClassDescriptor.java,v 1.2 2004/12/17 05:44:50 kvisco Exp $
*/


package org.exolab.castor.xml.descriptors;

import org.exolab.castor.mapping.ClassDescriptor;
import org.exolab.castor.mapping.FieldDescriptor;
import org.exolab.castor.mapping.AccessMode;
import org.exolab.castor.xml.handlers.SQLTimeFieldHandler;
import org.exolab.castor.xml.NodeType;
import org.exolab.castor.xml.XMLClassDescriptor;
import org.exolab.castor.xml.XMLFieldDescriptor;
import org.exolab.castor.xml.XMLFieldHandler;
import org.exolab.castor.xml.TypeValidator;
import org.exolab.castor.xml.util.XMLFieldDescriptorImpl;

import java.util.Date;
import java.sql.Time;

/**
* A ClassDescriptor for java.sql.Time
*
* @author <a href="kvisco-at-intalio.com">Keith Visco</a>
* @version $Revision: 1.2 $ $Date: 2004/12/17 05:44:50 $
*/
public class SQLTimeClassDescriptor
    implements XMLClassDescriptor
{


    /**
     * Used for returning no attribute and no element fields
    **/
    private static final XMLFieldDescriptor[] _noFields
        = new XMLFieldDescriptor[0];

    /**
     * The TypeValidator to use for validation of the described class
    **/
    private TypeValidator validator = null;

    /**
     * The name of the XML element.
     */
    private static final String _xmlName = "sql-time";

    private static XMLFieldDescriptorImpl _contentDescriptor = null;

    private static FieldDescriptor[] _fields = null;

    //----------------/
    //- Constructors -/
    //----------------/

    public SQLTimeClassDescriptor() {
        super();
        if (_contentDescriptor == null) {
            _contentDescriptor = new XMLFieldDescriptorImpl(String.class,
                "content", "content", NodeType.Text);

            _contentDescriptor.setImmutable(true);
            //-- setHandler
            SQLTimeFieldHandler sqlTimeHandler = new SQLTimeFieldHandler();
           
            XMLFieldHandler handler = new XMLFieldHandler() {
               
               
                public Object getValue(Object object) {
                    return object;
                }
               
                public void setValue( Object object, Object value)
                {
                    if (value == null) return;
                       
                    if (java.sql.Time.class == object.getClass()) {
                        Time target = (Time)object;
                        if (java.util.Date.class.isAssignableFrom(value.getClass())) {
                            target.setTime(((Date)value).getTime());
                        }
                    }
                }
               
                public Object newInstance( Object parent ) {
                    return new java.sql.Time((long)0);
                }
            };
            sqlTimeHandler.setFieldHandler(handler);
            _contentDescriptor.setHandler(sqlTimeHandler);

        }

        if (_fields == null) {
            _fields = new FieldDescriptor[1];
            _fields[0] = _contentDescriptor;
        }

    } //-- DateDescriptor

    //------------------/
    //- Public Methods -/
    //------------------/

    /**
     * Returns the set of XMLFieldDescriptors for all members
     * that should be marshalled as XML attributes.
     * @return an array of XMLFieldDescriptors for all members
     * that should be marshalled as XML attributes.
    **/
    public XMLFieldDescriptor[]  getAttributeDescriptors() {
        return _noFields;
    } // getAttributeDescriptors

    /**
     * Returns the XMLFieldDescriptor for the member
     * that should be marshalled as text content.
     * @return the XMLFieldDescriptor for the member
     * that should be marshalled as text content.
    **/
    public XMLFieldDescriptor getContentDescriptor() {
        return _contentDescriptor;
    } // getContentDescriptor

    /**
     * Returns the set of XMLFieldDescriptors for all members
     * that should be marshalled as XML elements.
     * @return an array of XMLFieldDescriptors for all members
     * that should be marshalled as XML elements.
    **/
    public XMLFieldDescriptor[]  getElementDescriptors() {
        return _noFields;
    } // getElementDescriptors

    /**
     * Returns the XML field descriptor matching the given
     * xml name and nodeType. If NodeType is null, then
     * either an AttributeDescriptor, or ElementDescriptor
     * may be returned. Null is returned if no matching
     * descriptor is available.
     *
     * @param name the xml name to match against
     * @param namespace the namespace uri
     * @param nodeType, the NodeType to match against, or null if
     * the node type is not known.
     * @return the matching descriptor, or null if no matching
     * descriptor is available.
     *
    **/
    public XMLFieldDescriptor getFieldDescriptor
        (String name, String namespace, NodeType nodeType)
    {
        return null;

    } //-- getFieldDescriptor

    /**
     * @return the namespace prefix to use when marshalling as XML.
    **/
    public String getNameSpacePrefix() {
        return null;
    } //-- getNameSpacePrefix

    /**
     * @return the namespace URI used when marshalling and unmarshalling as XML.
    **/
    public String getNameSpaceURI() {
        return null;
    } //-- getNameSpaceURI

    /**
     * Returns a specific validator for the class described by
     * this ClassDescriptor. A null value may be returned
     * if no specific validator exists.
     *
     * @return the type validator for the class described by this
     * ClassDescriptor.
    **/
    public TypeValidator getValidator() {
        return validator;
    } //-- getValidator

    /**
     * Returns the XML Name for the Class being described.
     *
     * @return the XML name.
    **/
    public String getXMLName() {
        return _xmlName;
    } //-- getXMLName

    /**
     * Returns the String representation of this XMLClassDescriptor
     * @return the String representation of this XMLClassDescriptor
    **/
    public String toString() {

        String str = super.toString() +
            "; descriptor for class: java.sql.Time";

        //-- add xml name
        str += "; xml name: " + _xmlName;

        return str;
    } //-- toString


    //-------------------------------------/
    //- Implementation of ClassDescriptor -/
    //-------------------------------------/

    /**
     * Returns the Java class represented by this descriptor.
     *
     * @return The Java class
     */
    public Class getJavaClass() {
        return java.sql.Time.class;
    } //-- getJavaClass


    /**
     * Returns a list of fields represented by this descriptor.
     *
     * @return A list of fields
     */
    public FieldDescriptor[] getFields() {
        return _fields;
    } //-- getFields


    /**
     * Returns the class descriptor of the class extended by this class.
     *
     * @return The extended class descriptor
     */
    public ClassDescriptor getExtends() {
        return null;
    } //-- getExtends


    /**
     * Returns the identity field, null if this class has no identity.
     *
     * @return The identity field
     */
    public FieldDescriptor getIdentity() {
        return null;
    } //-- getIdentity


    /**
     * Returns the access mode specified for this class.
     *
     * @return The access mode
     */
    public AccessMode getAccessMode() {
        return null;
    } //-- getAccessMode


     /**
     * <p>Returns true if the given object represented by this XMLClassDescriptor
     * can accept a member whose name is given.
     * An XMLClassDescriptor can accept a field if it contains a descriptor that matches
     * the given name and if the given object can hold this field (i.e a value is not already set for
     * this field).
     * <p>This is mainly used for container object (that can contains other object), in this particular case
     * the implementation will return null.
     * @param name the xml name of the field to check
     * @param namespace the namespace uri
     * @param object the object represented by this XMLCLassDescriptor
     * @return true if the given object represented by this XMLClassDescriptor
     * can accept a member whose name is given.
     */
    public boolean canAccept(String name, String namespace, Object object) {
         return false;
    }
   
   

} //-- class: SQLTimeClassDescriptor
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